Home / 68,739.50-103,125.32-21,352.16

Finding the Fourth Proportional to 68,739.50, 103,125.32 and 21,352.16

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Solution

The fourth proportional to 68,739.50, 103,125.32 and 21,352.16 is: 32,033.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,739.50 : 103,125.32 = 21,352.16 : x
  2. Step 2: Convert to fraction form
    68,739.50/103,125.32 = 21,352.16/x
  3. Step 3: Cross multiply
    68,739.50x = 103,125.32 × 21,352.16
  4. Step 4: Simplify right side
    68,739.50x = 2,201,948,332.69
  5. Step 5: Solve for x
    x = 2,201,948,332.69/68,739.50
  6. Step 6: Final answer
    x = 32,033.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.